Mohammed Shami thinks India's depth of pace resources is unprecedented in 'history'.

"You and everyone else in the world will agree to this - that no team has ever had five fast bowlers together as a package," Shami told the former India wicketkeeper Deep Dasgupta on Cricketbaazi, a Hindi talk show on ESPNcricinfo. "Not just now; in the history of cricket, this might be the best fast-bowling unit in the world."

Apart from Shami, India's core Test-match fast-bowling group also includes Ishant Sharma, Jasprit Bumrah, Umesh Yadav and Bhuvneshwar Kumar. Who bowls with the new ball, Shami said, is often a difficult choice, especially when the first-choice trio of himself, Ishant and Bumrah play together.

"We surround Virat Kohli and ask him to make the decision," Shami said. "But he normally says, 'don't get me involved in all this; you decide among yourselves, I don't have an issue.' That is the kind of fun we have in our team meetings. I let the other two start. I have no objection to bowling with a semi-new ball."

Since recovering from a career-threatening knee injury, Shami has featured in 27 out of India's 30 Tests since July 2017. There have been a number of highlights - a match-winning second-innings five-for in Johannesburg in 2018, 16 wickets at 26.18 during India's maiden Test series win in Australia in 2018-19, and 36 wickets at 18.63 in the ongoing 2019-21 World Test Championship. He has had a tendency to pick up his wickets in bursts - he attributed this to how he approaches bowling in different situations.

"If the batsman is set and we haven't been able to pick up a lot of wickets, we try to bowl a tight line and length by dropping our pace," he said. "As soon as we get a wicket, you increase your pace by about 8kph. This difference in speed is pretty visible. If the bowler was bowling at around 140kph earlier, after picking up a wicket he gets his rhythm back, picks up the pace and the same ball is now delivered at 145kph.

"My mindset while bowling is that if the batsman is playing well, bowl a tight line and length, dry up the runs, and he will surely make a mistake. Once the set batsman is dismissed, I go for the kill as a bowler. That's why it seems like I bowl in two different ways. The 'second-innings Shami' label - that has been created by you guys (the media)."

That label has a lot to do with Shami's contrasting records in the first - 92 wickets at 32.50 - and second - 88 wickets at 21.98 - innings of Test matches. On the 2017-18 tour of South Africa, for example, 12 of his 15 wickets came in the second innings.

"I'm not sure, it just happens," Shami said, when asked about this. "I use the game very smartly in the second innings. Like in the recent match we played in Vizag [Visakhapatnam Test against South Africa] where I got a five-for, the pitch was pretty dead and wasn't offering any bounce. It wasn't turning that much either for our spinners to run through the opposition. But once in a while the ball was staying low. Batsmen find it tough to play when there is uneven bounce, so you need to bowl within the stumps. It is important to understand how the pitch is behaving.

"Now that we have played enough cricket in various conditions, we are experienced enough to gauge the conditions. You need to use the available conditions smartly. I am usually pumped up in the second innings when everyone else is tired. Everyone has spent three days on the field. Diesel engines take time to pick up compared to petrol ones. I wait patiently for everyone to tire out. You have five days in a Test match. Once everyone is tired, I step up."

Episode 1 of Cricketbaazi will be published on June 19